A sewing apparatus includes a housing, an arm shaft that extends through the housing in a longitudinal direction, a cam member coupled to the arm shaft, the cam member including a front face and a rear face positioned opposite the front face, where the cam member includes a lobe positioned on one of the front face and the rear face, a needle assembly coupled to the housing, the needle assembly including a needle shaft and a needle coupled to the needle shaft, and an arm pivotally coupled to the housing and engaged with the cam member, where the needle assembly is slidably engaged with the arm in a vertical direction and the needle assembly is constrained with respect to the arm in the longitudinal direction and a lateral direction that is transverse to the longitudinal direction.

In a pressing device, a first member is movable in an up-down direction along with a presser bar of a sewing machine in a mounted state in which the pressing device is mounted on the presser bar. A second member supports a presser foot. The presser bar applies, through the second member, a presser force to the presser foot downward in the mounted state. A third member is disposed between the first and second members in the up-down direction in the mounted state. A gap-adjusting member adjusts a gap between the first and third members by contacting at least one of the first and third members. An urging member urges the second and third members away from each other with an urging force smaller than the pressing force of the presser bar. A guide part guides movement of the second and third members relative to the first member.

In a pressing device, a first member is movable in an up-down direction along with a presser bar of a sewing machine in a mounted state in which the pressing device is mounted on the presser bar. A second member supports a presser foot. The presser bar applies, through the second member, a presser force to the presser foot downward in the mounted state. A third member is disposed between the first and second members in the up-down direction in the mounted state. A gap-adjusting member adjusts a gap between the first and third members by contacting at least one of the first and third members. An urging member urges the second and third members away from each other with an urging force smaller than the pressing force of the presser bar. A guide part guides movement of the second and third members relative to the first member.

Disclosure relates to sewing machine capable of preventing thread cutting or deterioration caused by interference between leading end of needle and upper thread, that includes: head frame; needle bar supported on head frame to be movable up and down; needle having needle hole that penetrates in transverse direction with respect to axial line and has upper thread inserted thereinto and be coupled to lower end of needle bar to move up and down between lowered stitching position and lifted needle position; and presser foot unit having pressing part that is provided with needle guide hole through which needle passes and moves up and down between downward pressing height position where pressing part presses sewing material and lifting release height position where pressing part is lifted and spaced apart from sewing material and pressing foot arm that supports pressing part.

Disclosure relates to sewing machine capable of preventing thread cutting or deterioration caused by interference between leading end of needle and upper thread, that includes: head frame; needle bar supported on head frame to be movable up and down; needle having needle hole that penetrates in transverse direction with respect to axial line and has upper thread inserted thereinto and be coupled to lower end of needle bar to move up and down between lowered stitching position and lifted needle position; and presser foot unit having pressing part that is provided with needle guide hole through which needle passes and moves up and down between downward pressing height position where pressing part presses sewing material and lifting release height position where pressing part is lifted and spaced apart from sewing material and pressing foot arm that supports pressing part.

A sewing machine that suppresses sewing defects is provided. The sewing machine includes: a sewing needle, held by a needle bar and moving back and forth while holding an upper thread; a shuttle, configured to hold a bobbin around which a lower thread is wound and which is housed in a bobbin case, and cooperating with the sewing needle to form a seam; a presser foot member, configured to press a to-be-sewn article at a sewing position directly below the sewing needle; a feeding mechanism, feeding the to-be-sewn article from the sewing position to a first direction; a needle drive portion, provided separately from a belt drive portion to synchronously move the sewing needle and the presser foot component in the first direction; and a control portion, which controls so that the needle drive portion and the belt drive portion operate independently.

A sewing machine that suppresses sewing defects is provided. The sewing machine includes: a sewing needle, held by a needle bar and moving back and forth while holding an upper thread; a shuttle, configured to hold a bobbin around which a lower thread is wound and which is housed in a bobbin case, and cooperating with the sewing needle to form a seam; a presser foot member, configured to press a to-be-sewn article at a sewing position directly below the sewing needle; a feeding mechanism, feeding the to-be-sewn article from the sewing position to a first direction; a needle drive portion, provided separately from a belt drive portion to synchronously move the sewing needle and the presser foot component in the first direction; and a control portion, which controls so that the needle drive portion and the belt drive portion operate independently.

In a pressing device, a first member is movable in an up-down direction along with a presser bar of a sewing machine in a mounted state in which the pressing device is mounted on the presser bar. A second member supports a presser foot. The presser bar applies, through the second member, a presser force to the presser foot downward in the mounted state. A third member is disposed between the first and second members in the up-down direction in the mounted state. A gap-adjusting member adjusts a gap between the first and third members by contacting at least one of the first and third members. An urging member urges the second and third members away from each other with an urging force smaller than the pressing force of the presser bar. A guide part guides movement of the second and third members relative to the first member.

In a pressing device, a first member is movable in an up-down direction along with a presser bar of a sewing machine in a mounted state in which the pressing device is mounted on the presser bar. A second member supports a presser foot. The presser bar applies, through the second member, a presser force to the presser foot downward in the mounted state. A third member is disposed between the first and second members in the up-down direction in the mounted state. A gap-adjusting member adjusts a gap between the first and third members by contacting at least one of the first and third members. An urging member urges the second and third members away from each other with an urging force smaller than the pressing force of the presser bar. A guide part guides movement of the second and third members relative to the first member.

A sewing machine that suppresses sewing defects is provided. The sewing machine includes: a sewing needle, held by a needle bar and moving back and forth while holding an upper thread; a shuttle, configured to hold a bobbin around which a lower thread is wound and which is housed in a bobbin case, and cooperating with the sewing needle to form a seam; a presser foot member, configured to press a to-be-sewn article at a sewing position directly below the sewing needle; a feeding mechanism, feeding the to-be-sewn article from the sewing position to a first direction; a needle drive portion, provided separately from a belt drive portion to synchronously move the sewing needle and the presser foot component in the first direction; and a control portion, which controls so that the needle drive portion and the belt drive portion operate independently.